This robot moves forward when a weight is placed on its tray. When unloaded, the robot stops, and it will restart when any weight is placed again. The design is inspired by a doll of a boy serving tea (“cha-hakobiningyou”), from the Edo Period. 

This robot makes use of the rotational motion of gears to enable the stretching and retracting motion. In the application class, students will be able to change the grip construction, and extend its reach by adding onto the rod’s repeating structure. Students can enjoy playing a pilot rescue game in class with this robot.

It is a robot with two swings that sway alternately in sync.
First, we create a swing that is manually operated to confirm the swinging motion.
Next, using a motor, we construct a mechanism that transforms the rotational motion of the motor into the swaying back-and-forth motion, recreating a similar movement.
While enjoying the swing's motion, you can observe and understand the mechanism of the robot.

It is a robot that raises its arm and rolls a die.
In the lesson of day 1, we construct it to move the arm up and down, and in day 2 class, we modify it to "throw something placed in the hand forward while keeping it horizontally."
Through gradually complicating the arm, we learn the mechanism of "throwing objects."

This robot bicycle requires a fine balance of forces for it to move on two wheels. Students will learn to build the basic bicycle portion before bringing in the cyclist to the vehicle in the application class. In order to make the bicycle move smoothly, students must learn to balance the left and right forces well, so can naturally experience the balance of power.

This robot skier moves forward using the poles attached to both arms. Students will learn to modify the robot to mimic a skier by adding tires or changing how to attach the arms. Students will also learn the concept of frictional force by observing the difference in the robot’s motions with and without the tires.

This robot resembles a gorilla and marches forward on its long arms. By modifying the crank connection (a crank that connects the arm to the torso), students will be able to observe the change in motion. The feet could be replaced with wheels as a possible remodeling option.

This super cute robot rabbit is sure to grab kids’ attention! In the application class, students try remodeling to make the forearms and hind legs move in conjunction, and to make the ears move. Students also get to observe the difference in the movement by attaching the hind legs differently.

This is a “kayak-type” robot with two people on board.
On day 1 of the lesson, we create a kayak that moves forward as it swings sideways. On day 2, we create a parent and a child who row the kayak with oars.
The parent and child move in sync with the kayak’s movement as they collaborate to row it. It’s a very charming robot.

It is a "monorail-type" robot that moves along a single rail.
Connecting the rails with limited parts, we devise ways to enable the robot to travel longer distances.
At stations, the robot is equipped with a touch sensor to automatically come to a stop.

This robot features the movement of pistons from a steam locomotive. As the robot moves forward, the pistons (or the gears) at both sides of the train reciprocate back and forth. After building the standard train, students learn to remodel the train by attaching an additional carriage (ex. coal carriage) to the train. 

This robot duck walks in a comical manner, with its feet parallel to the floor by making use of parallel links. After making the base robot, the students can try their hand at remodeling, such as making its wings flap. The gears are exposed on the robot’s outer surface intentionally to allow for easy remodeling.

It is a robot where the flower part rotates
while the petals open.
By assembling parts in various directions,
we replicate the roots and stems,
transmitting the motor's power to rotate the flower.
You can enjoy the process of creating the overall image while imagining each part of the plant,
and after completion, you can observe the blossoming of the flower.

It is a bipedal walking robot that moves forward with two legs.
Using a Heckenlink mechanism to replicate the movement of legs, the usage of the mechanism is designed to make the legs move alternately.
We implement the seemingly ordinary movement of "walking" into the robot while confirming its functionality.
After completing the robot, we create a remote control to operate the robot's movements manually and enjoy the process.

Building the components of the robot requires a basic understanding in gears and shafts. In the application class, students will learn how to connect the rods, and make blades to resemble the shape of a bulldozer. As children love vehicle-shaped robots, they’re sure to find plenty of remodeling inspiration in this design.

Think about how you move your legs while riding a bicycle. This robot does that. We'll start by making a bicycle, then remodel it into a tricycle and see how it is less likely to fall over, and is more stable.
In reality, the robot is designed so that the power of the motor moves the front wheels to propel the bicycle, and the rear wheels follow, making it appear as if the rider's feet are pedaling the bicycle. Students can enjoy the way their viewpoint changes.

In making the base robot, gears embedded in this see-saw structure enable the vehicle and its pilot to move from left to right when the see-saw rocks. On the second day, students learn to automate the rocking movement. Through building this robot, students explore different weights and how they are balanced.

Students will learn to build a bull robot with its 4 legs moving alternatively. This simple structure makes use of diagonally-crossed rods to create the 4-legged movement. Simple remote controllers are introduced on the second day to let students control the bull robot from a distance. Students can try to challenge each other or the tutors in a bull fight.